2022-2024 Kia EV6 Passenger Climate Seat Module: Recall, Diagnosis, and Replacement Guide
This guide covers the diagnosis and replacement of the front passenger climate seat module (part number 88540-CV020), including a critical compatibility warning and recent recall information.
- This module (part # 88540-CV020) is ONLY for the passenger seat in EV6s with BOTH heated and ventilated functions.
- A recall was issued in Canada in June 2024 for the seat heater control unit causing overheating. US owners should contact a dealer if they have issues.
- The module is typically plug-and-play and does not require programming or a dealer visit for installation.
- Failure results in the passenger heated and/or cooled seat functions not working.
Known Issues & Recalls
June 2024 Seat Heater Overheating Recall
Recall Notice: In June 2024, Transport Canada issued recall 2024345 for the Kia EV6 concerning an issue where the seat heater wiring could disconnect, potentially causing the seat heaters to overheat. This poses a risk of a burn injury. The corrective action involves dealers replacing the 'seat heater electronic control unit' and, if necessary, the seat heater pads themselves. While this is a Canadian recall, the vehicles are built in the same factory, and US owners experiencing seat heating issues should contact a Kia dealer to inquire about this safety campaign.
Other recalls exist for the Kia EV6, such as for the Integrated Charging Control Unit (ICCU) which can cause a loss of power, but these are unrelated to the climate seat module.
Symptoms of a Failing Climate Seat Module
When the passenger climate seat module fails, the symptoms are usually straightforward:
- The passenger side heated seat function does not work.
- The passenger side ventilated (cooled) seat function does not work.
- The indicator lights on the dashboard buttons may light up, but the seat temperature does not change.
- In rare cases, the module can fail in the 'on' position, causing the seat heater to stay on continuously. If this happens, it's recommended to pull the fuse for the seat heaters to prevent discomfort and potential overheating until it can be repaired.
Failure of this specific module will not affect the driver's side seat, the rear heated seats, or the main vehicle HVAC (air conditioning and heating) system.
Diagnosing the Issue
If your passenger seat climate functions stop working, the first step is to check the fuse box for any blown fuses related to the seats. If the fuses are intact, the problem is likely either the module itself, the switch on the dash, or the heating/ventilation elements within the seat. A technician with a professional scan tool can communicate directly with the Body Control Module (BCM) to see if it has stored any specific fault codes (usually 'B' or 'U' codes) related to the seat module, which can confirm the diagnosis before replacing parts.
Buying a Used Climate Controlled Seat Module
Purchasing a used OEM module is a cost-effective way to restore your seat functions. However, careful verification is essential to ensure you get the right part.
Compatibility Warning: This module, part number 88540-CV020, is ONLY for the front passenger seat on Kia EV6 models equipped with BOTH heated AND ventilated (cooled) seat functions. It will not work on models that only have heated seats. Before buying, confirm your vehicle has ventilated seats by checking for perforated leather on the seat cushions and the specific fan icon on the climate control button.
- Verify the Part Number: The correct OEM part number for the passenger side heated and ventilated seat module is 88540-CV020. Do not install a module with a different part number, even if it looks identical.
- Inspect for Damage: When buying a used part, check the module's casing for any cracks or signs of water intrusion. Ensure the electrical connector pins are straight and free of corrosion.
- Source Matters: Buying from a reputable recycler that offers a warranty is recommended. Ask for the VIN of the vehicle the part came from to double-check its original options (heated/ventilated).
Programming and Installation
The Climate Controlled Seat Module on the Kia EV6 is generally considered a plug-and-play part and is not linked to the vehicle's anti-theft or immobilizer system. In most cases, programming is not required. You should be able to install the replacement module and have the functions work immediately.
However, with modern complex vehicle networks, there is a small chance the new module may not communicate correctly with the Body Control Module (BCM) right away. If the seat functions do not work after installing a known-good part, a dealer or a specialized independent shop with Kia-specific software (KDS) may need to perform a 'variant coding' or 'module setup' procedure to sync it with the vehicle. This is uncommon for this type of module but is a possibility.
General Replacement Steps
While a detailed, EV6-specific guide for the front seat is not readily available, the general procedure is as follows and is feasible for a DIY mechanic with basic tools.
- Disconnect the 12V Battery: This is the most important safety step. Disconnect the negative terminal of the 12-volt battery and wait at least 3-5 minutes. This de-energizes the airbag system (SRS), preventing accidental deployment while working on the seat.
- Unbolt the Seat: The front passenger seat is typically held down by four bolts, two at the front and two at the rear of the seat tracks. Remove the plastic covers to access these bolts.
- Tilt the Seat: You often do not need to remove the seat from the vehicle entirely. Carefully tilt the entire seat assembly backward to gain access to the underside.
- Locate and Replace the Module: The module (88540-CV020) is a small black plastic box mounted to the bottom of the seat frame. Disconnect the electrical connectors, unclip or unbolt it from its bracket, and swap it with the new module.
- Reassemble: Re-secure the module, connect the wiring, and carefully tilt the seat forward. Reinstall the four main seat bolts and torque them to the manufacturer's specification. Reconnect the 12V battery.
- Test: Turn the vehicle on and test both the heating and ventilation functions for the passenger seat.
Cost Comparison
Prices can vary based on your location and the supplier. Here is an estimated breakdown of costs:
| Part Type | Estimated Cost |
|---|---|
| New OEM (Dealer) | $350 - $500 |
| New Aftermarket | Not commonly available |
| Used OEM (Recycled) | $75 - $125 |
| Shop Labor Cost | $150 - $225 |
Frequently Asked Questions (FAQ)
Does the 88540-CV020 seat module need to be programmed?
No, in most cases, this module is plug-and-play and does not require programming. It is not tied to the immobilizer. If it does not work after installation, a simple software synchronization by a dealer may be needed, but this is rare.
Can I use a module from the driver's side on the passenger's side?
No. The driver's side often incorporates memory functions and has a different part number and internal logic. You must use the specific passenger side module, part number 88540-CV020.
Is my car affected by the seat heater recall?
The official recall for overheating seat heaters was issued in Canada. However, if you are in the US and your seat heater is malfunctioning or seems to be getting excessively hot, you should contact your Kia dealership. They can check your VIN against any open service campaigns or advise on the appropriate repair, which may be covered under warranty or this emerging issue.
Will replacing this module fix my main air conditioning?
No. This module only controls the heating elements and ventilation blowers inside the passenger seat. It is completely separate from the vehicle's main HVAC system that provides hot and cold air to the cabin vents.
Technical Specifications
OEM Part Numbers: 88540-CV020
Controls front passenger seat heating and ventilation functions. Located under the passenger seat.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Kia EV6:
- 🛍️ Shop This Part
- Known Issues & Recalls
- June 2024 Seat Heater Overheating Recall
- Symptoms of a Failing Climate Seat Module
- Diagnosing the Issue
- Buying a Used Climate Controlled Seat Module
- Programming and Installation
- General Replacement Steps
- Cost Comparison
- Frequently Asked Questions (FAQ)
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